A 3Com Local Phone Power Supply must be ordered separately3C10224-US: 120VAC for the United States3C10224-UK: 230VAC for the United Kingdom3C10224-ME: 230VAC for Middle Europe3C10224-SA: 240VAC for South Africa3C10224-AA: 240VAC for Australia and NewZealand3C10224-CN: 220VAC for China